Support stand for a sphere



FIG. 1 is a perspective view of a support stand for a sphere showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof; and

FIG. 4 is a front elevational view thereof, the showing of a sphere in broken lines is for illustrative purposes only. 

The ornamental design for a support stand for a sphere, as shown and described. 